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3 years ago

14

tyler can shovel the driveway in 2 hours. dakota can complete the job in 90 minutes. if they work together, how long will it tak

e

1 answer:

IRINA_888 [86]3 years ago

4 0

It would take 1minute and 10 seconds to complete the job because you have to subtract 2hours (2:00) by 90seconds (0:90)

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Explain number 5 please

Burka [1]

The answer to your question would be B.
I hope this helped:D

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3 years ago

Tom throws a Frisbee into the air from a height of 4 feet with

siniylev [52]

Answer:

68 feet

Step-by-step explanation:

Vertical motion model:

h = -16t² + vt + s

Given v = 64 and s = 4:

h = -16t² + 64t + 4

This is a parabola. The maximum of a parabola is at the vertex.

For y = ax² + bx + c, the vertex is at x = -b/(2a).

Therefore, the time to reach the maximum height is:

t = -64 / (2 × -16)

t = 2

And the maximum height is:

h = -16(2)² + 64(2) + 4

h = 68

So the Frisbee reaches a maximum height of 68 feet.

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3 years ago

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Vedmedyk [2.9K]

Answer:

It's a <em>(space) </em>lot<em>,... </em>haha na I just kidding,... you're good,... I mean I'm not kidding cause it is correct,... but you are good,... like totally cool,... anyway,...

Step-by-step explanation:

By x the just mean <em>what number,... </em>so,...

<em>what number </em>+ 6 = 7,

6 + <em>what number = 7,</em>

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2 years ago

Jonas is doing a science experiment with his class. The teacher has 21 fluid ounce of pond water to share equally with 10 pairs

tiny-mole [99]

2.1 ounces because you divide 21 by 10 which equals 2.1

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3 years ago

Statement "if a and b are both positive integer numbers, then a +b > a

bezimeni [28]

Answer:

Always

Step-by-step explanation:

Subtracting a from both sides yields b>0, which is always true since b is a positive integer.

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1 year ago